Hall gas-heater.



No. 679,684. Patented luly 3D, |901. J. W. MELLDTT.

HALL GAS HEATER.

(Application tiled Nov. 16, 1900.) (No Model.)

UNiTn STATES PATENT OFFICE;

JGHN IV. MELLOTT, OF PITTSBURG, PENNSYLVANIA.

HALL GAS-HEATER.

SPECIFICATION forming part of Letters Patent No. 679,684, dated July 30, 1901.

Application filed November 16, 1900. Serial No. 36,670. (No modell) .To all whom, it may concern:

Be it known that I, JOHN W. MELLOTT, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Hall Gas-Heaters; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the ro accompanying drawings, which form a part of this specification.

This invention relates to an improved gasheater for halls, rooms, duc.; and it consists in certain details of construction and combination of parts, as will be fully described hereinafter.

In the accompanying drawings, Figure 1 is a side sectional elevation of my improved heater, the same being constructed and arranged in accordance with my invention, the said section being taken on the line Y Y of Fig. 2. Fig. 2 is a sectional plan view of the same, the section taken on the line X X of Fig. 1.

To construct a heater in accordance with my invention, I form from suitable sheet metal a casing 1, annular in form and of a suitable diameter and length, and fit the same at the top with branch pipes 2, leading to 3o registers located in the apartments it is desired to heat. This casing 1 is provided at the base with air-openings 5 and also with a gas-inlet pipe 3, fitted with an air-mixer 4E of any of the well-known types. This mixer 4: is arranged to discharge air and gas into a chamber 6, provided with an inverted-coneshaped detlector 7, adapted to spread the said air and gas evenly throughout the chamber. The side walls of this chamber 6 are formed 4o witha number of small perforations 8, which ment 14 being closed at the top and the inner compartment 10 open. Communicating with the interior compartment 10 and leading from the air-space between the outer casing 1 are short air flues or pipes 13, which permit the air to pass freely into the said inner compartment 10. Arranged about the inner casing 10 and leading from the combus-.

tion-chamber 9 is a spiral flue, formed by a partition 11, andthe said flue leading to a smoke-flue 12 in a manner that Will conduct the products of combustion in a tortuous and slow passage, giving the said waste products time to impart their heat to the side walls and from thence to the air-fines.

In operation the heat from the combustionchamber 9 is confined in the air-chamber and may be distributed by means of the pipes 2 to points or places requiring its use.

Various slight modifications and changes may be made in the details of construction Without departing from the spirit of the invention.

Having thus described myinvention, what I claim, and desire to secure by Letters Patent, 1s-

The herein-described gas-heater, consisting of the air-casing 1, the two compartments 10, and 14 arranged within the same, the latter having air inlet and outlet, the mixingchamber 6, having an inverted-cone-shaped deliector 7, the combustion-chamber 9, surrounding the mixing-chamber, the perforations S and fibrous lining in said combustion-chamber, the spiral smoke-flue leading from the combustion-chamber to the smokeiiue 12, a gas-inlet pipe and mixer entering the mixing-chamber G, and the hot-air iues 2 leading from the casing 1, all arranged and combined for service, substantially as and for the purpose described.

In testimony whereof I have hereunto affixed my signature in the presence of two subscribing witnesses.

Jox-IN w. MnLLor'r.

Witnesses:

F. W. SCHWARTZ, JOHN GROETZINGER. 

